Each task in a Swift task group must return the same type of data as all the other tasks in the group, which is often problematic – what if you need one task group to handle ...

Swift lets us perform async operations using both await and async let, but although they both run some async code they don’t quite run the same: await wai...

AsyncSequence has implementations of many of the same methods that come with Sequence, but how they operate varies: some return a single value that fulfills you...

When a thread pauses work on one actor to start work on another actor instead, we call it actor hopping, and it will happen any time one actor calls another.当线程暂停对一个 a...

Sometimes you want to run several async operations at the same time then wait for their results to come back, and the easiest way to do that is with async let. This lets you start...

If you’re writing a command-line tool with Swift, you can use async code in two ways: if you're using main.swift you can immediately make and use async functions as norm...

Swift’s Task struct has a static sleep() method that will cause the current task to be suspended for a set period of time. You need to call Task.sleep()&n...

There are only three differences between creating an AsyncSequence and creating a regular Sequence, none of which are complicated.创建 AsyncSequence 和创建...

Swift’s task groups can be cancelled in one of three ways: if the parent task of the task group is cancelled, if you explicitly call cancelAll() on the group, or if one of your ...

Swift’s async let syntax provides short, helpful syntax for running lots of work concurrently, allowing us to wait for them all later on. However, it only works as ...